Mahana79
Silver Member
i do UOA's on all 3 of my vehicles. i consider myself an average rural american. for me they have proved useful in one instance. On my 02 Jetta at an oil change around 92,000 My UOA came back with some really high numbers. the folks at blackstone reccomended inspection of the top end because of what metals they had found. i pulled the valve cover and after some research and consulting on tdiclub i fould the culprit to be a bad cam that was pitting out on the lobes. I replaced the cam and lifters tot he tune of about $280. ran a quick oil change basically to break in the new cam and lifters and took some more samples each time. everything cleared up and now with 147,xxx on the odo everything is fine. a rebuilt 1.9 TDI runs about $8k depending. UOA's have helped me catch problems that i would have never seem without. to me they are worth the $18-$25 just for that extra bit of information that they provide. the icing on the cake is that they have allowed me to extend my oil change intervals. Do I really need to know how much iron, copper, tin, etc. is in my oil?? No probably not. does it hurt me to know?? No not really. Will it help prevent an engine problem?? It just might but you will never know if you dont do it. i know it did prevent a major problem with my Jetta because i was doing them. knowdlege is power and without it you dont know what your missing.